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If algae is still visible
without the worry of fading or bleaching
Repeat each day until desired alkalinity is reached
Balances water for bather comfort
Each Mineral cartridge lasts up to 4 months
Spa Marvel Water Treatment & Conditioner 16 fl oz soft water spa treatment If algae is still visibleSpa Marvel Water Treatment & Conditioner Application Directions Add one full bottle of Spa Marvel Water Treatment to all tubs up to 500 gallons. Even in smaller tubs, use 1 full bottle as your bather load per volume of water is usually equal to, if not greater than the larger tubs. (In a brand new spa, add one third of a bottle, the second third in 30 days, and the last third in another 30 days.) Occasionally when the Spa Marvel is added it can be
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